SOBB: Skewed Oriented Bounding Boxes for Ray Tracing
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F25%3A00383427" target="_blank" >RIV/68407700:21230/25:00383427 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1111/cgf.70062" target="_blank" >https://doi.org/10.1111/cgf.70062</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/cgf.70062" target="_blank" >10.1111/cgf.70062</a>
Alternative languages
Result language
angličtina
Original language name
SOBB: Skewed Oriented Bounding Boxes for Ray Tracing
Original language description
We propose skewed oriented bounding boxes (SOBB) as a novel bounding primitive for accelerating the calculation of ray-scene intersections. SOBBs have the same memory footprint as the well-known oriented bounding boxes (OBB) and can be used with a similar ray intersection algorithm. We propose an efficient algorithm for constructing a BVH with SOBBs, using a transformation from a standard BVH built for axis-aligned bounding boxes (AABB). We use discrete orientation polytopes as a temporary bounding representation to find tightly fitting SOBBs. Additionally, we propose a compression scheme for SOBBs that makes their memory requirements comparable to those of AABBs. For secondary rays, the SOBB BVH provides a ray tracing speedup of 1.0-11.0x over the AABB BVH and it is 1.1x faster than the OBB BVH on average. The transformation of AABB BVH to SOBB BVH is, on average, 2.6x faster than the ditetrahedron-based AABB BVH to OBB BVH transformation.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)
Result continuities
Project
<a href="/en/project/EF16_019%2F0000765" target="_blank" >EF16_019/0000765: Research Center for Informatics</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
COMPUTER GRAPHICS FORUM
ISSN
0167-7055
e-ISSN
1467-8659
Volume of the periodical
44
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
1-11
UT code for WoS article
001470111500001
EID of the result in the Scopus database
2-s2.0-105002814228